1. I am stuck. Could anybody push me in the right direction?
Best Regards Lasse
The minimum force needed to lift the weight will be the same as the force needed to hold the weight without falling.
So this is a statics question, find the force needed to keep everything where it is. Draw a free body diagram for the entire thing -- you should find the force F applied to the rope, the mass has some weight and there is some force applied by a shaft to hold the pulleys in place. Can you write an equation that will allow you to ignore the force applied by the shaft?
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